Which statement is true about a planet’s orbital motion?
a. orbital motion only occurs when forward motion exceeds the gravitational pull.
b. orbital motion results when the object’s forward motion is balanced by a second object’s gravitational pull.
c. orbital motion cannot be achieved with man-made objects.
d. orbital motion is limited to the moons of the planets and the planets in our solar system.

Gather reliable information to brent make his decision. to gather this information, use newspapers, call insurance companies or look at their web sites, and review consumer magazines and web sites. also, look at the manufacturer web site or for information about gas mileage. list the sources you use and take notes.

10 points! will mark brainiest! in a heat engine if 1,000 j of heat enters the system and the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2,000 j 1: write the equation 2: list out your known variables 3: plug the numbers into the equations 4: solve 5: write your solution statement that includes initial energy and final energy added you so much!

What does si stand for,when referring to a system of measurement